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TPS65145 Datasheet(PDF) 4 Page - Texas Instruments

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Part No. TPS65145
Description  TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65145 Datasheet(HTML) 4 Page - Texas Instruments

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TPS65140
TPS65145
SLVS497B – SEPTEMBER 2003 – REVISED MARCH 2004
ELECTRICAL CHARACTERISTICS (continued)
V
in = 3.3 V, EN = VIN, Vo1 = 10 V, TA= -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
MAIN BOOST CONVERTER
Vo1
Output voltage range
5
15
V
VO1-Vin
Minimum input to output
1
V
voltage difference
VREF
Reference voltage
1.205
1.13
1.219
V
Feedback regulation volt-
1.136
1.146
1.154
VFB
V
age
IFB
Feedback input bias cur-
10
100
nA
rent
Vo1 = 10 V, Isw = 500 mA
195
290
N-MOSFET on-resistance
rDS(on)
m
(Q1)
Vo1 = 5 V, Isw = 500 mA
285
420
TPS65140
1.6
2.3
2.6
A
N-MOSFET switch current
ILIM
limit (Q1)
TPS65145
0.96
1.37
1.56
A
Vo1 = 10 V, Isw = 100 mA
9
15
P-MOSFET on-resistance
rDS(on)
(Q2)
Vo1 = 5 V, Isw = 100 mA
14
22
Maximum P-MOSFET peak
IMAX
1
A
switch current
Vsw = 15 V
1
10
Ileak
Switch leakage current
µA
Vsw = 0 V
1
10
0
°C ≤ T
A≤ 85°C
1.295
1.6
2.1
fSW
Oscillator frequency
MHz
-40
°C ≤ T
A≤ 85°C
1.191
1.6
2.1
Line regulation
2.7 V
≤ V
I ≤ 5.7 V; Iload = 100 mA
0.012
%/V
Load regulation
0 mA
≤ I
O≤ 300 mA
0.2
%/A
NEGATIVE CHARGE PUMP Vo2
Vo2
Output voltage range
-2
V
Vref
Reference voltage
1.205
1.213
1.219
V
Feedback regulation volt-
VFB
-36
0
36
mV
age
Feedback input bias cur-
IFB
10
100
nA
rent
Q8 P-Channel switch
4.3
8
rDS(on)
rDS(on)
IO = 20 mA
Q9 N-Channel switch
2.9
4.4
rDS(on)
IO
Minimum output current
20
mA
7 V
≤ Vo1 ≤ 15 V, I
load =10 mA, Vo2 = -5
Line regulation
0.09
%/V
V
Load regulation
1 mA
≤ I
O≤ 20 mA, Vo2 = -5 V
0.126
%/mA
POSITIVE CHARGE PUMP Vo3
Vo3
Output voltage range
30
V
Vref
Reference voltage
1.205
1.213
1.219
V
Feedback regulation volt-
VFB
1.187
1.214
1.238
V
age
Feedback input bias cur-
IFB
10
100
nA
rent
4


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